THESAURUS
crenellate
Vandyke, arm, armor, armor-plate, bank, barricade, battle, blaze, blockade, bulwark, castellate, chop, crenulate, crimp, cut, dig in, embattle, entrench, fence, fortify, garrison, gash, incise, indent, jag, knurl, machicolate, man, man the garrison, mill, mine, nick, notch, palisade, picot, pink, scallop, scarify, score, scotch, serrate, slash, tooth, wall